C.R.S. § 25-48-109

(1) Unless otherwise prohibited by law, the attending physician or the hospice medical director shall sign the death certificate of a qualified individual who obtained and self-administered aid-in-dying medication. (2) When a death has occurred in accordance with this article, the cause of death shall be listed as the underlying terminal illness and the death does not constitute grounds for post-mortem inquiry under section 30-10-606 (1), C.R.S.